#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
int main()
{
	char arr1[20] = { "*****************" };
	char arr2[20] = { "welcomg to bit!!!" };
	char a[20] = { 0 };
	int left = 0;
	int right = strlen(arr1) - 1;
	int mid = (left + right) / 2;
	while (left <= right)
	{
		a[right] = arr1[right];
		a[left] = arr1[left];
		arr1[left] = arr2[left];
		arr1[right] = arr2[right];
		arr2[left] = a[left];
		arr2[right] = a[right];
		left++;
		right--;
	}
		printf("%s\n",arr1);
		printf("%s\n", arr2);
	return 0;
}